Pagini recente » Cod sursa (job #3350328) | Cod sursa (job #3333643) | Monitorul de evaluare | Borderou de evaluare (job #2611824) | Cod sursa (job #3343301)
#include <bits/stdc++.h>
using namespace std;
const int NMAX = 5e4+2;
const int INF = 1e6;
using pii = pair<int, int>;
int n,m,dist[NMAX];
vector<pii> v[NMAX];
ifstream fin("dijkstra.in");
ofstream fout("dijkstra.out");
int main() {
fin >> n >> m;
for(int i = 1; i <= m; i++){
int x, y, z;
fin >> x >> y >> z;
v[x].push_back({y, z});
}
for(int i = 1; i <= n; i++){
dist[i] = INF;
}
set<pii> s;
dist[1] = 0;
s.insert({0, 1});
while(!s.empty()){
int nod = s.begin()->second;
s.erase(s.begin());
for(auto [vecin, cost]: v[nod]){
if(dist[vecin] > dist[nod] + cost){
s.erase({dist[vecin], vecin});
dist[vecin] = cost + dist[nod];
s.insert({dist[vecin], vecin});
}
}
}
for(int i = 2; i <= n; i++){
fout << (dist[i] == INF ? 0 : dist[i]) << " ";
}
return 0;
}